I'm having similar issues with Time Machine. I'm running El Capitan in a brand new MacBook 12 in.
I have a network attached storage (Seagate's Personal Cloud), since the update my Finder can't find the network drive, if I want to access I have to connect directly to the IP trough 'Connect to a server'.
After 30 attempts when finally TM finds the Personal Cloud, it takes more than 30 hours for a 20GB backup and it gets freezed at 17GB.
My wife's 2010 MacBook Air is working fine.
Damn you, El Capitan.
Regards to all of you.
I have a network attached storage (Seagate's Personal Cloud), since the update my Finder can't find the network drive, if I want to access I have to connect directly to the IP trough 'Connect to a server'.
After 30 attempts when finally TM finds the Personal Cloud, it takes more than 30 hours for a 20GB backup and it gets freezed at 17GB.
My wife's 2010 MacBook Air is working fine.
Damn you, El Capitan.
Regards to all of you.